利用基于双色双梳齿的异步线性光学采样进行单光子级超快时间分辨测量

IF 2.3 4区物理与天体物理 Q3 PHYSICS, APPLIED

Applied Physics Express Pub Date : 2024-02-14 DOI:10.35848/1882-0786/ad2112

Prasad Koviri, Hajime Komori, Haochen Tian, Masahiro Ishizeki, Takashi Kato, Akifumi Asahara, Ryosuke Shimizu, Thomas R. Schibli and Kaoru Minoshima

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引用次数: 0

摘要

我们展示了一种在单光子水平上运行的超快时间分辨测量方法，该方法采用了基于双色梳的异步光学采样（ASOPS）装置。我们利用双色 ASOPS 光子计数方法实现了超低强度信号与同步光学触发信号的长期平均，从而最大限度地减少了两个梳状体之间的残余定时抖动。成功获得了脉冲宽度受限的皮秒级交叉相关信号，其功率水平小于 1 光子/脉冲。这种方法可以对纠缠光子对的超快时间分辨探测、时频域量子力学相关性进行深入研究，并在光量子技术中得到广泛应用。

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Single-photon level ultrafast time-resolved measurement using two-color dual-comb-based asynchronous linear optical sampling

We demonstrated an ultrafast time-resolved measurement method operating at the single-photon level and employing a two-color comb-based asynchronous optical sampling (ASOPS) setup. We harnessed the two-color ASOPS photon counting approach to achieve long-term averaging of the ultralow intensity signal with a synchronized optical trigger signal, which minimizes residual timing jitter between the two combs. A pulse-width limited picosecond cross-correlation signal was successfully obtained with a power level of <1 photon/pulse. This approach enables the thorough study of ultrafast time-resolved detection of entangled photon pairs, quantum mechanical correlations in the time-frequency domain and finds wide use in optical quantum technology.

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来源期刊

Applied Physics Express 物理-物理：应用

CiteScore

4.80

自引率

8.70%

发文量

310

审稿时长

1.2 months

期刊介绍： Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).